Expanding on a4ab0c08 there's
another test that on some tinderboxes was a few permille off.

Adding 1% fuzz in comparison, seems we've now aquired some font
layout instabilities across platforms.

Change-Id: I7b068105c6ffad44b055e4dc37deb03c6040ab09
Reviewed-on: https://gerrit.libreoffice.org/55509Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>